385905811567 has 4 divisors (see below), whose sum is σ = 388037888056. Its totient is φ = 383773735080.

The previous prime is 385905811559. The next prime is 385905811601. The reversal of 385905811567 is 765118509583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385905811567 - 2³ = 385905811559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385905811507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066037973 + ... + 1066038334.

It is an arithmetic number, because the mean of its divisors is an integer number (97009472014).

Almost surely, 2^385905811567 is an apocalyptic number.

385905811567 is a deficient number, since it is larger than the sum of its proper divisors (2132076489).

385905811567 is a wasteful number, since it uses less digits than its factorization.

385905811567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132076488.

The product of its (nonzero) digits is 9072000, while the sum is 58.

The spelling of 385905811567 in words is "three hundred eighty-five billion, nine hundred five million, eight hundred eleven thousand, five hundred sixty-seven".